26990601 has 8 divisors (see below), whose sum is σ = 39259104. Its totient is φ = 16357920.

The previous prime is 26990597. The next prime is 26990617. The reversal of 26990601 is 10609962.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26990601 - 2² = 26990597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 817897 = 26990601 / (2 + 6 + 9 + 9 + 0 + 6 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (26990641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408916 + ... + 408981.

It is an arithmetic number, because the mean of its divisors is an integer number (4907388).

Almost surely, 2^26990601 is an apocalyptic number.

It is an amenable number.

26990601 is a deficient number, since it is larger than the sum of its proper divisors (12268503).

26990601 is a wasteful number, since it uses less digits than its factorization.

26990601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817911.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 26990601 is about 5195.2479247867. The cubic root of 26990601 is about 299.9651848487.

The spelling of 26990601 in words is "twenty-six million, nine hundred ninety thousand, six hundred one".